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Roll of black 3M 481 sealing tape on a core

3M

3M 481 Sealing Tape Black 1 in x 5 yd 9.5 mil 170°F 25 oz/in

SKU CH-XEWE-ZV3Z2

Black sealing tape with polyethylene film backing and rubber adhesive, 9.5 mil thick, rated to 170°F with 25 oz/in adhesion

  • TypeCapacitors
  • Black 3M 481 tape seals reliably indoors and outdoors
  • Rubber adhesive delivers 25 oz/in adhesion to steel
  • Polyethylene film backing resists moisture and abrasion
  • Withstands temperatures up to 170 °F in service
  • 5 mil thickness handles demanding sealing jobs

3M 481 Sealing Tape Black 1 in x 5 yd

3M 481 is a black polyethylene sealing tape with rubber adhesive for indoor and outdoor use. It measures 1 inch wide by 5 yards long with a 9.5 mil thickness. The roll suits maintenance, repair and general sealing tasks where a conformable backing is required.

Easy application and common issues

The tape unwinds smoothly and adheres to steel at 25 oz/in without special tools. Press firmly along the full length to activate the rubber adhesive on uneven surfaces. Cold conditions below the rated range can reduce initial tack, and dust or oil on the substrate will lower bond strength.

Sustained load behaviour

The tape maintains adhesion up to 170 degrees F during continuous exposure. Rubber adhesive resists shear creep on vertical joints over long periods. Polyethylene backing resists moisture and UV, so outdoor seals stay intact through temperature cycles without flagging or delamination.

Highlights

  • Black 3M 481 tape seals reliably indoors and outdoors
  • Rubber adhesive delivers 25 oz/in adhesion to steel
  • Polyethylene film backing resists moisture and abrasion
  • Withstands temperatures up to 170 °F in service
  • 5 mil thickness handles demanding sealing jobs

Specifications

Brand3M
TypeCapacitors

Questions about this item

How can I verify the 3M 481 sealing tape is performing correctly after application?

Press the tape firmly onto the surface and check for full contact without air gaps; the rubber adhesive should hold securely up to 170°F with 25 oz/in adhesion to steel.

What comes in the package and what additional items are needed for installation?

The box contains one roll of black polyethylene film tape measuring 1 in wide by 5 yd long at 9.5 mil thickness; no extra tools or materials are required for standard sealing tasks.

Which 3M 481 tape specification should I select for my temperature and width requirements?

Choose the 1 in x 5 yd roll rated for 170°F maximum performance temperature with 9.5 mil thickness and 25 oz/in adhesion to steel for indoor or outdoor sealing.

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